131628920 has 16 divisors (see below), whose sum is σ = 296165160. Its totient is φ = 52651552.

The previous prime is 131628919. The next prime is 131628949. The reversal of 131628920 is 29826131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1645322 + ... + 1645401.

Almost surely, 2^131628920 is an apocalyptic number.

131628920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131628920 is an abundant number, since it is smaller than the sum of its proper divisors (164536240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131628920 is a wasteful number, since it uses less digits than its factorization.

131628920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290734 (or 3290730 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 131628920 is about 11472.9647432562. The cubic root of 131628920 is about 508.6867661831.

The spelling of 131628920 in words is "one hundred thirty-one million, six hundred twenty-eight thousand, nine hundred twenty".